Class G Airspace

[MtrHedAP]

Is Class G airspace ever depicted? I always thought it was not until i was told and shown I think (it was a few years ago) that it was depicted as a shaded brown in areas where the ceiling of G was greater than 1200 AGL. This would be in mountanous areas such as in a valley. Could have something to do with 14,500 also. Not sure, i dont remember if this is true or i am thinking of something else. Thanks

 

[ePilot22]

Look at a Denver sectional or low-enroute chart. Class G is shown in the mountains where no airspace overlies it until 14500'ft.





eP.

 

[mattpilot]

The brown shaded areas you refer to can be found on IFR low enroute charts, and yes, it does depict areas were Class G goes up to 14.5k. REmember, it is all Class G airspace up to 14.5k unless depicted otherwise. It just so happens that class G has become increasingly rare at those altitudes and the only time you'll see something depicted on sectionals is if you go to mountainous, rural, terrain ... . It is in the form of blue shaded transition lines.... similar to those used to bring Glass G down from 1200 to 700, just blue. Also you will notice the shading looks 'inverted' - or different as one would expect. All that means is that all airspace outside of this area is Class E down to 1200 and G below that.

 

[Metro752]

Check out Lake City, FL

 

[midlifeflyer]

brown for low altitude enroute IFR; blue for sectionals. There is also the hatched blue lines on sectionals for areas where Class G goes up to a specific altitude.

go to www.skyvector.com. Input C08 (that's a zero). When the chart loads:

There is a pretty large stretch of G to 14,500 depicted along the mountains to the west. Silver West itself is in an area where Class G goes up to 13,700.

For extra credit (someone pointed this out to me last week - now it's my new favorite airspace trivia question), there are points along the mountains to the west of C08 where class G goes =higher= than 14,500. What are they?

 

[WMUSIGPI]

Where the ground level is above 13800. Then class G would be above 14500 because the class E is not below 700 agl (no airport around at those altitudes in the US). Just a guess as I don't have a sectional handy.

 

[woutlaw]

Here's an excerpt from the Twin Cities sectional near Carrington, ND that depicts a few different Class G presentations.

http://home.comcast.net/~w.outlaw/class_g.jpg

Dunno if I can embed it or not, but I'll try.

<img src="http://home.comcast.net/~w.outlaw/class_g.jpg">

Edit: Guess I can't embed it.

 

[midlifeflyer]

Where the ground level is above 13800. Then class G would be above 14500 because the class E is not below 700 agl (no airport around at those altitudes in the US). Just a guess as I don't have a sectional handy.

Pretty good guess. Yep, there's a certain amount of Class G that exists within a certain number of feet above the ground even when we get to the 14,500' continental Class E level. The part I didn't know until recently was that it's 1500 AGL. (FAR 71.71(a)) So, with that 13,800 terrain, Class G would go up to 15,300 msl.

 

[MtrHedAP]

Thanks for the feedback i am amazed that i did not know that.